Taijiang County is a county under Qiandongnan Prefecture of Guizhou Province, located in the southeast of Guizhou Province and the central part of Qiandongnan Miao and Dong Autonomous Prefecture. The county seat is 48 kilometers away from Kaili City, the provincial capital, and 218 kilometers away from Guiyang City, the provincial capital. There are Highway 65 and National Highway 320 passing through the county. According to the data of the seventh population census, as of 0:00 on November 1, 2020, the permanent resident population of Taijiang County was 122861.

With a total area of 1108 square kilometers, Taijiang County has jurisdiction over 2 streets, 4 towns, 3 townships, 5 neighborhood committees and 197 village committees.

In November 2017, Taijiang County was awarded the "2017 Top Ten Quality Leisure Counties and Cities in China". On March 3, 2020, it will withdraw from the poverty-stricken county sequence and achieve poverty alleviation. In 2020, the total output value of Taijiang County will reach 4.54 billion yuan.